Implant Apparatus for Spinal Surgery

Abstract

Provided is an implant apparatus for spinal surgery, in which a shaft is detachably connected to a connector equipped with a grip part, thus making it easy to replace and clean the shaft. The implant apparatus for spinal surgery includes a shaft having a predetermined length, with a screw for the spinal surgery being fastened to one end of the shaft, a sleeve fixedly surrounding an outer surface of the shaft, a straight handle and a clamping handle fastened to an outer circumference of the sleeve, a shaft locking part coupled to the clamping handle to lock the shaft, and a connector including an assembly member that is detachably coupled to the other end of the shaft and is assembled with a separate grip part while accommodating the other end of the shaft, and a housing connected to the assembly member and having a shaft coupling space therein to fix or release the inserted shaft.

What is claimed is: 
     
         1 . An implant apparatus for spinal surgery, comprising:
 a shaft having a predetermined length, with a screw for the spinal surgery being fastened to one end of the shaft;   a sleeve fixedly surrounding an outer surface of the shaft;   a straight handle and a clamping handle fastened to an outer circumference of the sleeve;   a shaft locking part coupled to the clamping handle to lock the shaft; and   a connector comprising an assembly member that is detachably coupled to the other end of the shaft and is assembled with a separate grip part while accommodating the other end of the shaft, and a housing connected to the assembly member and having a shaft coupling space therein to fix or release the inserted shaft.   
     
     
         2 . The implant apparatus of  claim 1 , wherein the shaft locking part is disposed to be movable on the shaft, and the shaft locking part engages with the clamping handle to allow the shaft to rotate only in one direction. 
     
     
         3 . The implant apparatus of  claim 1 , wherein an assembly groove is formed on an outer circumference of the assembly member of the connector so that the separate grip part is assembled therewith. 
     
     
         4 . The implant apparatus of  claim 1 , wherein the connector comprises a locker that is installed in the housing to be movable through a compression coil spring and locks the shaft inserted into the housing. 
     
     
         5 . The implant apparatus of  claim 4 , wherein the locker comprises a locking hole formed to lock or unlock the shaft. 
     
     
         6 . The implant apparatus of  claim 5 , wherein an elongated hole is formed in a portion adjacent to the locking hole of the locker, so that the locker is assembled with the housing by inserting a pin into the elongated hole. 
     
     
         7 . The implant apparatus of  claim 6 , wherein the locker is fastened to the pin to be movable along the elongated hole.